What is ventanillas?

Ventanillas are small windows or apertures in walls or partitions that allow communication, ventilation, and light to pass through. They can be found in residential, commercial, or industrial buildings. In some cases, ventanillas may also be used for transportation such as toll booths or train ticket windows. Ventanillas are commonly found in Latin America and Spain and are a popular architectural feature in colonial-era buildings. They can be made of various materials, including wood, metal, or stone, and can be open or closed with a shutter or grille. Ventanillas are typically located at the lower portion of the wall, enabling communication between the inside and outside without compromising privacy.